Cable-traction system.



No. 767,837. PATENTED AUG. 16, 1904. G. w. SANDERS.

CABLE TEAGTION SYSTEM.

APPIJIUATIN FILED MAY 3, 1904. NO MODEL.

2 SHEETS-SHEET 1.

WIM/8858. y NVENT W @gorge wmztef No. 767,837. PATENTED AUG. 16, 1904.G. W. SANDERS.

CABLE TRAGTION SYSTEM.

APPLIoATIoN FILED un s. 1904.

N0 MODEL. 2 SHEETS-SHEET 2Y UNITED STATES Patented August 16, 1904.

GEORGE W. SANDERS, OF GADSDEN, ALABAMA.

CABLE-TRACTION SYSTEM.

SPECIFICATION forming part of Letters Patent N0. 767,837, dated August16, 1904.

Application filed May 3, 1904. Serial No. 206,203. (No model To all whomt may concern:

Beit known that I, GEORGE 1V. SANDERS, a citizen of the United States,and a resident of Gadsden, in the county of Etowah and State of Alabama,have invented a new and Improved Cable-Traction System, of which thefollowing is a full, clear, and exact description.

My invention relates to cable-traction systems, and has for itsprincipal objects the provision of an effective means for operating carsin either direction along a track.

It consists in the various features and combinations hereinafterdescribed and more particularly claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of a portion of a track with a caroperating thereon, these showing one embodiment of my invention. Fig. 2is a longitudinal section on the line 2 2 of Fig. 3; and Fig. 3 is a topplan view of a track and car, including the operating-pulleys for thecable.

rl`he drawings show a track-section consisting of rails 10 laid in theusual manner upon ties 11, and at each end of this track-section aresituated horizontal pulleys 12 and 13, the peripheries of which extendoutside the rails and which are preferably grooved to receive y anendless cable 14. The pulley 12 may serve to drive the cable, it beingconnected through suitable gearing 15 with a power-shaft 16, thecompanion pulley being a support or idler. Mounted outside the rails,conveniently in suitable bearings 17, fixed near the ends of the ties,are sheaves 18, in contact with which the cable may run and be supportedat proper intervals between the main pulleys.

Operating upon the rails on wheels 19 is a car 20. At each end of thecar is shown a platform 21, in the side walls 22 of which are fixedpairs of opposite bearing-axles 22, projecting outwardly, on which arejournaled pairs of pulleys 23 23 and 24 24, situated outside the railsand in substantially the same vertical plane as that of the sheaves andthe peripheries of the main pulleys. About these car-pulleys the cableextends, it crossing' at the bottom of each The pulleys 23 serve astraction-wheels and may be fixed upon their axles by friction devices,here shown as consisting of frictionsurfaces 24u of cylindrical form,extending from the inner sides of the pulleys, about each of whichpasses a flexible band 25, which may.

be of metal lined with some such material as leather. One end of thisband is connected to a pin 26, fixed to the outer face of the side wall,the other end being joined to the extremity of an arm 27, fast upon ashaft 28, journaled near the outer ends of the walls. Secured to thisshaft is a lever 29, which may be connected bya rod 30 to asimilar lever31, fulcrumed upon the wall of the platform at the opposite end of thecar.

The cable will of course travel in different directions at the oppositesides of the car, and the securing-points of the bands to the car and tothe lever-arm for each of the pulleys 28 is such that upon forcing thelever in one direction that band will be brought into coaction with thefriction-surface of the pulley encircled by the run of the cable whichis traveling in the same direction, while the companion band issimultaneously loosened or moved out of cooperation with itsfrictionsurface. If it is desired to reverse the movement of the car, itis only necessary to move the lever in the opposite direction, when theband previously in engagement with the friction-surface will be loosenedand the other band tightened. By virtue of the connection this may beaccomplished from either platform of the car. The pulleys 24 servemerely as guide-wheels, they turning at all times freely upon theiraxles.

This system is very simple in construction and operation and subjectsthe cable to but slight wear. Y

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. AV traction system comprising a cable movable inopposite directions, a car, a pulley rotatably mounted at each side ofthe car IOO and coacting with the cable, and means for preventing' therotation of either pulley.

2. A traction system comprising a cable movable in opposite directions,a car, a pulley rotatably mounted at cach side of the car and coactingwith the cable and provided with a 'fricti0n-surface, and a membercarried by the car and movable into coaction with the friction-surface.

3. A traction system comprising a cable movable in opposite directions,a car, a pulley rotatably mounted at each side of the car and coactingwith the cable and provided with a friction-surface, a member carried bythe car and movable into coactionwith the friction-surface, and meansfor moving said members common to both.

4C. A traction system comprising a cable movable in opposite directions,a car, a pulley rotatably mounted at each side of the car and coactingwith the cable and provided with a friction-surface, a member carried bythe car and movable into coaction with the frictionsurface, and meanscommon to both of said members for simultaneously moving them inopposite directions.

5. A traction system comprising' a cable movable in opposite directions,a car, a pulley rotatably mounted upon each side of the car and coactingwith the cable and provided with a friction-surface, a shaft extending'across the car, an arm fixed to the shaft adjacent to each pulley, and aband secured to the arm and to the car and coacting with thefriction-surface.

6. A tractionl system comprising a cable movable in opposite directions,a car, a pulley rotatably mounted upon each side of the car and coactingWith the cable and provided with a friction-surface, a shaft extendingacross the car, an arm fixed to the shaft adjacent toeach pulley, a bandsecured to the arm and to the car and coacting with thefriction-surface, and means for moving the arms to simultaneously applyone band to its friction-surface and loosen the other from itsengagement.

7. A traction system comprising a cable movable in opposite directions,a car, a guidepulley mounted at each side of the car near one end, atraction-pulley mounted at each side of the car near the opposite end,and means for preventing the rotation of either traction-pulley.

8. A traction system comprising a track, a cable movable outside thetrack in opposite directions, a car upon the track, and tractionpulleysmounted outside the car and coacting with the cable. i

9. A traction system comprising a section of track, horizontal pulleyssituated at the ends of the track-section with their peripheriesextending beyond the track at each side,

